Saw toothed wave generator



Befeffing to ,ig. 5, thefe iS Shown an exefnp1ied en1bodinlent of the aTTa ngeInent accoTd ing to this invention. The curfent of the contfo1 tube 3 SetS up acfoSS the fesiStance s a biaSing potentia1 c vhich disappeafs upon bloo(ing of the tube 3 in aocofdance v ith the above de scribed control action thro11gh the condenSef S ond the leak 7. nasrnuch as tube 3 is fed back to the plate circuit of pentode 8 the connection of the contfol gfid of ttlbe 8 iS irnTnatefia1. So, tube 3 could be a screengfid tube Synch1-oniz ing n1eans could suitably be inSerbed in the scfeen-grid oircut of tube 3.

An OSci11ation generator coInprising a con denSef IneanS fo1 storing electfica1 enefgy in Said condenser, a discharge path fof Said con denSer ooInpriSing aJ If1111ti-grid vacuuIn t11be having cathode, anode and at least three gfids having itS plate and cathode connected acrosS Said condenSer, TneanS fof connecting one of Said grids directly to Said cathode, TIleans for biasing another of Said gridS positive vith Tespect to said othode, aJ Second vacuufn tube having anode, oathode and at leaSt one contfo1 electfode, n1eans for ooupling anothef of the grids of said fSt tube fo the anode of said second tube and the anode of the rSt tube to the contro1 eleotTode, and nleans foT coupling the anode of the second tube to the anode of the first tube coInpfising Tesistance n1eans in a con1Inon path be t een Said Tneans for stofing energy and the anodeS of both tubeS.

HANSvVERNEB PIEPLovv. 

